.top-bar {
  height: 48px;
  background-color: #000;
  padding: 0 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
a {
  color: #fff;
}
a:hover {
  color: #c5c4c4;
}
.left:hover .nav {
  display: block;
}
.left .nav {
  display: none;
  position: absolute;
  top: 48px;
  left: 0;
  bottom: 0;
  right: 0;
  background-color: black;
  padding-top: 50px;
  transition: 0.3s;
}
.left .nav li {
  width: 80%;
  height: 44px;
  margin: 0 auto;
}
.left .nav li a {
  line-height: 44px;
  display: block;
  font-size: 14px;
  border-bottom: 1px solid #757474;
}
.left .nav li:last-child {
  display: flex;
  justify-content: center;
}
.left .nav li:last-child a {
  border-bottom: none;
  padding: 10px;
}
.left .nav li:last-child a i {
  padding: 5px;
}
.left .menu-icon {
  width: 18px;
  height: 48px;
  position: relative;
}
.left .menu-icon li {
  width: 18px;
  height: 1px;
  background-color: #ffffff;
  position: absolute;
  transform-origin: left center;
  transition: 0.3s;
}
.left .menu-icon li:nth-child(1) {
  top: 18px;
}
.left .menu-icon li:nth-child(2) {
  top: 24px;
}
.left .menu-icon li:nth-child(3) {
  top: 30px;
}
.left .menu-icon:hover li:nth-child(1) {
  transform: rotateZ(45deg);
}
.left .menu-icon:hover li:nth-child(2) {
  visibility: hidden;
}
.left .menu-icon:hover li:nth-child(3) {
  transform: rotateZ(-45deg);
}
.logo img {
  width: 73px;
  height: 20px;
}
@media only screen and (min-width: 760px) {
  .left {
    order: 2;
  }
  .left:hover .nav {
    display: flex;
  }
  .left .menu-icon {
    display: none;
  }
  .left .nav {
    display: flex;
    position: static;
    padding: 0;
  }
  .left .nav li {
    width: auto;
    border-bottom: none;
    padding: 0 20px;
  }
  .left .nav li a {
    line-height: 48px;
    border: none;
  }
  .left .nav li:last-child {
    margin-left: 100px;
  }
  .left .nav li:last-child a {
    padding: 0;
  }
  .left .nav li:last-child a i {
    padding: 0;
  }
  .logo {
    order: 1;
  }
  div {
    order: 3;
  }
}
